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An insect moves along the sides of a wal...

An insect moves along the sides of a wall of dimensions `12mxx5m` starting from one corner and reaches the diagonally opposite corner. If the insect takes 2s for its motion then find the ratio of average speed to average velocity of the insect.

A

`17:13`

B

`12:5`

C

`13:5`

D

`17:12`

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